Cesanta MJS 2.20.0 /usr/local/bin/mjs denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.5$0-$5k0.00

Overview

A vulnerability was found in Cesanta MJS 2.20.0. It has been rated as problematic. This issue affects some unknown processing of the file /usr/local/bin/mjs. The manipulation leads to denial of service. The CWE definition for the vulnerability is CWE-404. The weakness was published 01/28/2022 as 221. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-46547. The attack needs to be initiated within the local network. Technical details are available. There is no exploit available. The price for an exploit might be around USD $0-$5k at the moment. It is declared as not defined. We expect the 0-day to have been worth approximately $0-$5k. A possible mitigation has been published even before and not after the disclosure of the vulnerability. [Details]

Activities

Activities

IOC - Indicator of Compromise (3)

These indicators of compromise highlight associated network ranges which are known to be part of research and attack activities.

IOA - Indicator of Attack (1)

These indicators of attack list the potential fragments used for technical activities like reconnaissance, exploitation, privilege escalation, and exfiltration. This data is unique as it uses our predictive model for actor profiling.

IDClassIndicatorTypeConfidence
1File/usr/local/bin/mjspredictiveHigh

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